Size-Vivace-Performance-Fleece
| US Size | Chest |
| XXS | 26" - 28" |
| XS | 30" - 32" |
| S | 34" - 36" |
| M | 38" - 40" |
| L | 42" - 44" |
| XL | 46" - 48" |
| 2XL | 50" - 52" |
| 3XL | 52" - 54" |
| 4XL | 54" - 56" |
| 5XL | 56" - 58" |
- Measure your chest: Stand up straight with your arms hang down in a relaxed, natural pose. Measure around the fullest part of your chest, under the armpits and around the back.